Subrion CMS Web Installer Scanner

The Subrion CMS Web Installer is utilized during the installation process of Subrion CMS, a content management system designed for flexibility and extensibility. It is employed primarily by developers and web administrators seeking to establish a new website or application using Subrion CMS. The web installer simplifies the setup process by guiding users through configuration steps in an interactive manner. Subrion CMS is widely used for its versatility, offering users control over a range of content types and community features. It is prominent in environments where modular design and ease of use are critical. The installer is a key entry point to deploying robust CMS solutions catering to diverse digital content needs.

The vulnerability found within Subrion CMS Web Installer is related to its exposure, which can occur if the installer is left accessible to unauthorized parties after initial installation is completed. This exposure can typically occur due to misconfiguration or neglect in securing access to the installer directory. If exploited, unauthorized individuals could potentially alter or disrupt the website's setup. The nature of the vulnerability is that it could allow an attacker to reinitiate the installation process or access configuration settings inadvertently left in a vulnerable state. The installer’s presence in a live environment poses a significant security risk due to its powerful control functionalities.

Technically, this vulnerability involves the exposure of the ‘/install/’ directory of a Subrion CMS installation. The endpoint can be accessed via HTTP methods, and it fetches web pages containing installer content indicators such as "Subrion CMS Web Installer" and "Installation wizard." An attacker might search for these indicators to identify vulnerable installations. Leaving the installation script accessible implies the potential for recommencing installation or divulging sensitive configuration details. The vulnerability depends on improper post-installation cleanup or server misconfiguration keeping the installer public-facing, despite the lack of necessity beyond initial use.

If exploited, the exposed web installer may lead to unauthorized reinstallation or compromise of the CMS setup. Attackers might gain control to change configurations, deploy malicious content, or execute arbitrary code. Such exposure could ultimately lead to data theft, service disruption, or a fully compromised web application. Malicious users may also use access to further infiltrate networked systems or pivot through the organization’s digital assets. The threat level depends on the attacker’s intent, with outcomes ranging from minor disruptions to severe data loss or reputational damage.

REFERENCES

• https://github.com/intelliants/subrion